Current levels
4-day forecast
The maximum daily level is shown for each allergen. Levels: 1 (Low) - 5 (Extreme).
Pollen concentration
Za ovaj izvor trenutno je dostupna samo jedna objavljena vrijednost, pa linijski trend ne bi bio pouzdan. Prikazujemo najrelevantnije trenutačne koncentracije.
Climate and vegetation
The climate is sub-Mediterranean - mild, wet winters, warm and dry summers, and a strong bura wind. The vegetation shifts from Mediterranean along the coast (olive groves, maquis) to sub-Mediterranean in central Istria (oak forests). The bura blowing down from Učka spreads pollen across Kvarner, while the moisture from the Adriatic creates high cypress concentrations in winter.
Main allergens in Istria & Kvarner
Olive
Olea europaeaMay - JuneIstria's olive groves traditionally produce top-quality oil, but they bring strong symptoms to allergy sufferers
Cypress
CupressusFebruary - Aprilwidespread in Pula, Rovinj and Poreč
Grasses
PoaceaeMay - Junecentral Istria has large pastures
Oak
QuercusApril - Maythe oak forests of Pazin and central Istria
Birch
BetulaApril - Maylower concentrations than in Continental Croatia, but present in the interior
Cities in Istria & Kvarner
The pollen forecast for Istria & Kvarner covers the following larger urban areas:
Typical symptoms
Istrian allergy sufferers often report a 'continuous' season from February (cypress) through June (olive) to September (grasses). The symptoms are typical - sneezing, a runny nose and watery eyes. Because of the combination of Mediterranean and sub-Mediterranean allergens, sensitisation to several pollen types in parallel - so-called polysensitisation - is more common in Istria.
Protection and tips
Follow the pollen forecast and watch for changes in wind direction (the bura carries pollen from continental species from the east, the jugo brings pollen from the sea and from Italy). Immunotherapy for olive is widely available in Pula and Rijeka. During the olive season (June), avoid olive groves in open areas.
Frequently asked questions - Istria & Kvarner
When does the allergy season start in Istria?
The season starts as early as late January with hazel and continues through February - April with cypress. The main season runs from April (oak) through May - June (olive, grasses) to September - October (mugwort). Istria has one of the longest seasonal curves in Croatia.
What are the main allergens in Pula and Rovinj?
Olive is the dominant allergen along the coast - Pula, Rovinj and Poreč have olive pollen concentrations that often exceed 100 grains/m³ in June. Cypress in winter and oak in April also make a significant contribution. Grasses are a problem in central Istria (Pazin, Buzet).
Does the pollen season in Istria differ from Dalmatia?
Istria's season is 1-2 weeks later than southern Dalmatia's, but with similar main allergens (olive, cypress). Istria has more birch and oak pollen because of the nearby continental vegetation, while in southern Dalmatia holm oak is more important.
Is there an olive allergy in Kvarner?
Yes, but to a lesser degree than in Dalmatia. The islands of Cres, Krk and Mali Lošinj have olive groves, but concentrations are lower than on Hvar or Brač. Residents of Opatija and Rijeka usually have mild symptoms from olive in May and June.
About the data
The current levels for this region come from the public pollen forecast of NZJZ Štampar / PLIVA. If measurements are not available, we use Open-Meteo/Copernicus CAMS as a fallback.
- •Source: NZJZ Štampar / PLIVA
- •Coordinates: 45.20°N, 14.00°E
- •Updates: as published by the source, with a fallback to the model forecast
- •Levels: 1 (Low), 2 (Moderate), 3 (High), 4 (Very High), 5 (Extreme)